Online Courses
Bring learning to the comfort of your home.
With decades of field experience behind them, courses from AC Service Tech by Craig Migliaccio and HVAC U by Brynn Cooksey deliver practical, online HVAC training built for working technicians. Whether you’re preparing for the EPA 608 certification, learning A2L refrigerant safety, or expanding your building science knowledge, these courses help you strengthen fundamentals, stay current with industry changes, and build real confidence in the field.
Browse the full catalog and start learning today.
HVAC U, LLC Training Courses
Prepare for the EPA Section 608 exam with a focused review of refrigerant fundamentals, regulatory requirements, and safe handling practices. This course helps you build confidence, strengthen core knowledge, and get fully ready to pass your certification exam.
As the industry transitions to different refrigerants, safety and compliance matter more than ever. This course equips you with the knowledge to properly handle refrigerants, understand regulatory changes, and work safely with next-generation systems.
Take your first step into the world of energy-efficient home performance. This course introduces key industry terminology and foundational building science concepts, helping you understand how homes function as systems and how to improve comfort, durability, and efficiency.
AC Service Tech HVACR Training
These free mini courses give you a quick, practical introduction to real HVAC topics, from system basics to airflow diagnostics and metering device operation. In just over an hour of total content, you’ll get a feel for the training style and start building knowledge you can apply immediately in the field.
Unlock over 60 hours of structured content covering charging procedures, furnace operation, mini splits, heat pumps, and more, this subscription is designed to help you grow your skills, increase confidence, and stay sharp in a changing industry. Gain full access for only $9.99 / month.
Online Training FAQ
Are these online HVAC courses one-time purchases or a subscription?
Both options are available. You can enroll in select HVAC certification prep courses, such as EPA 608 or A2L refrigerant safety training, as a one-time purchase through HVAC U. Or choose the monthly HVAC training subscription for full access to 60+ hours of online HVAC courses through AC Service Tech.
What is included in the AC Service Tech course subscription?
The subscription provides access to a complete library of online HVAC training covering refrigerant charging procedures, furnace operation, heat pumps, mini splits, airflow diagnostics, and building science fundamentals.
How much do HVAC U courses cost?
HVAC U offers individual online HVAC training courses, each priced separately based on the topic and depth of training. Courses like EPA 608 Technician Certification Prep and Low GWP Refrigerant Safety are available for a one-time enrollment fee. You can view current pricing directly on each course page before enrolling.
Are these HVAC courses self-paced and fully online?
Yes. All HVAC training courses are 100% online and on demand, allowing technicians to study at their own pace from any device.
Who are these HVAC training courses designed for?
These courses are built for HVAC technicians, apprentices, and professionals preparing for EPA 608 certification, transitioning to A2L refrigerants, or expanding their knowledge in building science and system diagnostics.
What should I do if I need help with my course purchase?
For questions about billing, access, or course content, please contact the course provider’s customer support team directly. Since the training is hosted and fulfilled by them, their support team can best assist with order and account inquiries.
Looking for more resources?
Check out our resource page or give us a call at 1-888-224-3437.